Tubular lantern.



W. McARTHUR, JR.

TUBULAR, LANTERN.

APPLICATION FILED JULY 19. 1913.

Patented July 13, 1915.

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WARRENMeARTHUR, m, or CHICAGO, ILLIfio ISQ eems-ea To a. E.- ninrzcerium,

A CORPORATION on NEW YORK.

. TUBuLAn LANTERN.

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Specification of Letters Patent July 13, 1915".

Application fila'iin' 19, 1913. Serial no. 7725,5509.

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Be itk own that L-WiAIiREN McA'nTnUn Improvement in'Tubular Lanterns, ofwhich I the following is a specification This invention relatesto aburner structure for tubular lanterns in which the wick tube ispermanently secured. in place ontho oil pot, asdistinguished. fromstructures in which the wick tube forms part of a burner whichisremovably seated in a socket in the The. objectof thisinvention is toprovide asimple, durable and compact structure by which the parts aresecurely held in position and the escape of, oilfrom thewick tube to theoutsideof the lantern'is prevented.v

In the accompanying. drawings: Figure l is, anelevation of the oil potand connecting parts of a tubular lantern embodying. this improvement.Fig, 2. is a fragmentary top plan view of the. same onan enlarged scale.Fig: ,3 isan elevation; of the burner cone and globe plate. Fig. 4 is. avertical section-ofthe upper part of the oil pot and theair chamberthereon on an enlarged scale. Fig. 5is a detached sectional elevation ofthe wick tube and connecting parts at rightfangles to Fig. 4.1. Fig. 6is a detached elevation of the cup onl'which the wick tube is supportedat right angles. to Fig. 5. Fig. 7 isa fragmentary elevation of the airchamber. Fig. 8 is a fragmentary vertical section illustrating amodified connection of. the cup with the bottom of the air chamber. Fig.9 is a fragmentary vertical section showing a modified embodiment ofthe. invention.

Like reference characters refer to like parts in the several figures.

Referring. to Figs. l' 7 A. represents the oil pot havi'ng aperipheralwalllO and an .oval annular top plate 11' terminating in an upstandingcollar 12. The peripheral. wall andthe topplate are preferably formed.one piece in the usual manner... lgo repres sentsv an annular diaphragmor transverse .por-

tionlof the peripheral wall bysolderingand which ,forms i the. top 3 ofthe oil pot and: the

bottom of the chamber B on the same,

the top of the airchamber being formed by the oval top plate 11. 14represents the tubes; whlcharesecured to the oval top plate in the;usual .manner. T

15 represents a cup-shapedguard which is secured in the centralopeningof the diaphragm 13,,and 16 represents the Wick tube whichissecured.atits lower, end in the bottom pf-this, cup. 17 represents-thewickraiser shaft which is I arranged in notches '18 in the upper edge ofthis cup and in notches 19 in thecollar 12. ;The opening in the topplate 1 1 which is. surrounded by the collar 12 is covered by aperforated platev 20 which is seated with its .downwardlv turned-marginal portion upon. the collar 12 and which may be permanently securedthereto, The wick tube extends upwardly through an oblong opening21inthe plate 20 and the latter is preferably provided in this opening withlips 210 Figs. 2 4 and 9, which bear along the; tube and into the cupfrom which such oil can. return into .the .wick tube throughv an opening22 formed near the lower endof the wick'tube. The lips 210 of theperforated plate, are preferably bent downwardly, as indicated in Figs.4 and 9 topreventoilwhich flows down on the outer side of the wick tubefrom passing outwardly upon the perforated plate.

23 ,repr.esents the wick .raiser or ratchet wheels and 24. representsthe upright slots formed iinthje wick tube for the same. Any oilwhichescapes through these slots passes into the cup and from thelatterthroughthe opening 22 backinto the wick tube and the oil'pot, The cupprevents any oil which escapes from the wick tube from passinginto.thefairchamber. andforms an oil guard located between the airchamber and the drainage opening 22 through which the oil is returned tothe oil pot. If any oil should flow along the wick-raiser shaft it isstripped from the shaft by contact with the upper portion of the cup andcaused to flow down on the inner side of the cup.

The cup may be secured to the diaphragm 13 by soldering or by clenchingthe bottom of the cup against the underside of the diaphragm, asrepresented in Fig. 8.

25 represents the burner cone which is separate from the wick tube andis preferably secured to the globe plate 26 in a well known manner.

In the construction represented in Fig. 9, the air chamber D is separatefrom the oil pot and is of cup shape, having a bottom 26 resting uponthe top plate 27 of the oil pot. The bottom 26 and the top plate 27 areprovided with coinciding central openings in which the cup or guard 15is secured. The perforated top plate 28 through which the wick tubeprojects is provided with an imperforate marginal portion 29 which formsthe top of the air chamber.

The drainage opening can be formed in the bottom of the cup instead ofthe wick tube, as represented at 80 in Fig. 9, but this is lessdesirable because when the opening is formed in the wick tube there isless likelihood of oil being splashed from the oil pot into the cup byviolent movements of the lantern.

I claim as my invention:

1. The combination with an oil pot and an air chamber upon the same, ofa wick tube permanently connected with said pot, a guard which,surrounds the wick tube within the air chamber and is permanentlyconnected with said oil pot and said wick tube, and an oil drainageopening arranged inside of said guard and leading from the lower portionof the air chamber to the oil 2. The combination with an oil pot and anair chamber upon the same, of a wick tube permanently connected with theoil pot, a guard surrounding the wick tube and extending upwardly fromthe bottom of said air chamber, and a drainage opening formed in thelower portion of said wick tube with in said guard.

3. The combination with an oil pot and an air chamber upon the samehaving a central opening in its bottom, of a cup-shaped guardpermanently secured in said opening, and a wick tube permanently securedin the bottom of said guard.

4c. The combination with an oil pot and an air chamber upon the samehaving a central opening in its bottom, of a cup-shaped guardpermanently secured in said opening, a wick tube permanently secured inthe bottom of said guard, and a drainage opening inside of said guard.

The combination with an oil pot having a raised top plate which extendsup Wardly from the outer marginal portion of the oil pot and forms thetop of an air chamber, tubes connected with said top, a diaphragmsecured within the oil pot and extending substantially from theperipheral portion of the oil pot and forming the bottom of said airchamber, and a wick tube permanently connected with the oil pot andextending upwardly through said air chamber.

6. The combination with an oil pot having a raised top plate which formsthe top of an air chamber, tubes connected with said top, a diaphragmsecured within the oil pot and forming the bottom of said air chamber, acup-shaped guard secured within the air chamber in a central opening insaid diaphragm, and a wick tube permanently se cured to the bottom ofsaid guard.

7 The combination with an oil pot having a raised top plate which formsthe top of an air chamber, tubes connected with said top, a diaphragmsecured within the oil pot and forming the bottom of said air chamber, awick tube permanently connected with said oil pot and extending upwardlythrough said air chamber, and a separate piece perforated top plateapplied to said air chamber and surrounding said wick tube.

8. The combination with an oil pot, an air chamber above the same, aguard extending upwardly from the bottom of said air chamber andprovided in its upper edge with notches for the reception of awick-raiser shaft, a wick tube permanently connected with said oil pot,and a wick-raiser shaft arranged in said notches.

9. The combination with an oil pot having a raised top plate which formsthe top of an air chamber and which terminates in an upstanding collarhaving notches for the re ception of a wick-raiser shaft, a diaphragmsecured within the oil pot and forming the bottom of said air chamber, aguard extending upwardly from said bottom and having notches in itsupper edge for the reception of said Wick-raiser shaft, a wick tubepermanently connected with the oil pot, and a wick-raiser shaft arrangedin said notches.

10. The combination of an oil pot, an air chamber above the same havinga central opening in its top, a wick tube permanently connected withsaid oil pot and extending through said opening in the top of the airchamber, and a perforated plate closing the opening in the top of saidair chamber and having an opening through which the wick tube projects.

11. The combination of an oil pot, an air opening in its top a Wick tubepermanently chamber above the same having a central said opening withlips which bear against said wick tube.

Witness my hand, this 15th day of July,

connected with said oil pot and extending through said opening in thetop of the air chamber, and a perforated plate closing the opening inthe top of said air chamber and having an opening through which the wicktube projects, said plate being provided in Copies of this patent may beobtained for five cents each, 'by addressingthe Commissioner of Patents,

Washington, D. 0.

